Every Japanese kid at some point in their lives has to do radio calisthenics exercises in the morning. Even though I didn’t go to a Japanese school, I stumbled upon this strange ritual at a local swimming school that my mom took me to for a few months in grade school.
I think this routine should be secret code for how to tell if someone is Japanese. You know, like a fraternity hand shake. I’ve also seen old Chinese people do a similar exercise routine early in the morning in parks all over San Francisco but cannot confirm that it’s the exact same thing. Anyone?